/*****************************************************************************
 * ipcp.h -  PPP IP NCP: Internet Protocol Network Control Protocol header file.
 *
 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
 * portions Copyright (c) 1997 Global Election Systems Inc.
 *
 * The authors hereby grant permission to use, copy, modify, distribute,
 * and license this software and its documentation for any purpose, provided
 * that existing copyright notices are retained in all copies and that this
 * notice and the following disclaimer are included verbatim in any
 * distributions. No written agreement, license, or royalty fee is required
 * for any of the authorized uses.
 *
 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 ******************************************************************************
 * REVISION HISTORY
 *
 * 03-01-01 Marc Boucher <marc@mbsi.ca>
 *   Ported to lwIP.
 * 97-12-04 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
 *   Original derived from BSD codes.
 *****************************************************************************/
/*
 * ipcp.h - IP Control Protocol definitions.
 *
 * Copyright (c) 1989 Carnegie Mellon University.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by Carnegie Mellon University.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * $Id: ipcp.h,v 1.4 2010/01/18 20:49:43 goldsimon Exp $
 */

#ifndef IPCP_H
#define IPCP_H

/*
 * Options.
 */
#define CI_ADDRS 1        /* IP Addresses */
#define CI_COMPRESSTYPE 2 /* Compression Type */
#define CI_ADDR 3

#define CI_MS_DNS1 129  /* Primary DNS value */
#define CI_MS_WINS1 128 /* Primary WINS value */
#define CI_MS_DNS2 131  /* Secondary DNS value */
#define CI_MS_WINS2 130 /* Secondary WINS value */

#define IPCP_VJMODE_OLD 1     /* "old" mode (option # = 0x0037) */
#define IPCP_VJMODE_RFC1172 2 /* "old-rfc"mode (option # = 0x002d) */
#define IPCP_VJMODE_RFC1332 3 /* "new-rfc"mode (option # = 0x002d, */
                              /*  maxslot and slot number compression) */

#define IPCP_VJ_COMP 0x002d     /* current value for VJ compression option */
#define IPCP_VJ_COMP_OLD 0x0037 /* "old" (i.e, broken) value for VJ */
                                /* compression option */

typedef struct ipcp_options {
	u_int   neg_addr : 1;      /* Negotiate IP Address? */
	u_int   old_addrs : 1;     /* Use old (IP-Addresses) option? */
	u_int   req_addr : 1;      /* Ask peer to send IP address? */
	u_int   default_route : 1; /* Assign default route through interface? */
	u_int   proxy_arp : 1;     /* Make proxy ARP entry for peer? */
	u_int   neg_vj : 1;        /* Van Jacobson Compression? */
	u_int   old_vj : 1;        /* use old (short) form of VJ option? */
	u_int   accept_local : 1;  /* accept peer's value for ouraddr */
	u_int   accept_remote : 1; /* accept peer's value for hisaddr */
	u_int   req_dns1 : 1;      /* Ask peer to send primary DNS address? */
	u_int   req_dns2 : 1;      /* Ask peer to send secondary DNS address? */
	u_short vj_protocol;       /* protocol value to use in VJ option */
	u_char  maxslotindex;      /* VJ slots - 1. */
	u_char  cflag;             /* VJ slot compression flag. */
	u32_t   ouraddr, hisaddr;  /* Addresses in NETWORK BYTE ORDER */
	u32_t   dnsaddr[2];        /* Primary and secondary MS DNS entries */
	u32_t   winsaddr[2];       /* Primary and secondary MS WINS entries */
} ipcp_options;

extern fsm          ipcp_fsm[];
extern ipcp_options ipcp_wantoptions[];
extern ipcp_options ipcp_gotoptions[];
extern ipcp_options ipcp_allowoptions[];
extern ipcp_options ipcp_hisoptions[];

extern struct protent ipcp_protent;

#endif /* IPCP_H */
